Don't lose visitors just because your site is on a language that they don't understand, use a service like GTranslate and ensure just everybody will be able to read your content, the minute they've landed on your site. Available both for free and as a paid service, GTranslate is a powerful platform that lets you have your whole website translated into as much as 58 different languages.

Any page that you have translated using GTranslate is hosted on a URL of its very own, and AdSense ads change according to the language that's being used.